Following managed care saturation in the US market, and because of limited prospects in Europe, managed care made some headway in Latin America and Southeast Asia.The following paper compares a general concept, "managed care", across countries, and shows that it has gained acceptance in certain territories (e.g. Hong Kong, the Philippines), but not in others. Managed care is defined as processes or techniques used by any entity that delivers, administers and/or assumes risk for health services in order to control or influence the quality, accessibility, utilization, costs and prices, or outcomes of such services provided to a defined population (American Medical Association, 1999). The first part of the paper reviews specific experiences (Indonesia, the Philippines, Malaysia, Hong Kong, Singapore), and is followed by a summary of difficulties that Managed Care encountered in Asia. Among these are rising public defiance and physician opposition.